CN106184267B - A kind of transverse stop device and method of rail traffic active control - Google Patents
A kind of transverse stop device and method of rail traffic active control Download PDFInfo
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- CN106184267B CN106184267B CN201610595006.7A CN201610595006A CN106184267B CN 106184267 B CN106184267 B CN 106184267B CN 201610595006 A CN201610595006 A CN 201610595006A CN 106184267 B CN106184267 B CN 106184267B
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- car body
- lateral
- stop device
- transverse
- actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
- B61F5/245—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
The invention discloses a kind of can be displaced to cross-car actively to adjust the transverse stop device controlled and method, solve the problems, such as that lateral backstop is poor to environmental suitabilities such as route and weather, it can be under the premise of not influencing normal vehicle dynamic performance, apply active force by actuator, buffer the side knock between car body and bogie and the excessive lateral displacement of limitation, and the actuator can quickly make a response according to the difference of running velocity, meets the needs of Vehicular system control lateral displacement, it realizes lateral backstop and bogie frame spacing is adjustable, action time controllable target.
Description
Technical field
The present invention relates to track transportation industries, refer in particular to a kind of cross that actively adjusting control can be displaced to cross-car
It to stop device and method, realizes under the premise of not influencing dynamics of vehicle performance, improves Vehicular system and different routes are transported
The adaptability of row operating condition and weather environment variation.
Background technique
Transverse rubber backstop is located in rail vehicle secondary suspension system, for buffering the transverse direction between car body and bogie
Excessive lateral displacement is impacted and limited, is that vibration damping provides flexible stable platform for two, the operation product of city rail vehicle can be improved
Matter and the comfort property for improving vehicle.The effect of transverse stop device is the transverse movement for inhibiting car body relative to bogie, is protected
Demonstrate,prove vehicle relative to bogie displacement in a certain range, enable rail vehicle to obtain excellent lateral stability and seating
Comfort.Car body is certainly existed relative to the transverse movement of bogie, cannot be entirely limited, and transverse stop device should design
At having certain elasticity, structure with backstop gap, when displacement very little of the car body relative to bogie, lateral backstop dress
It sets and does not work, when car body is more than the gap of setting relative to the displacement of bogie, transverse stop device can limit car body
Excess lateral movement.
Existing transverse stop device structure species are different, are not that structure is complicated, installation is inconvenient, exactly cannot fully limit
The transverse movement of car body and bogie processed.Vehicle can be super by various different sweep differences with friction speed in actual motion
High route, these different operating conditions have differences with design requirement, and overrun situation happens occasionally, and is easy to cause existing
Lateral backstop occur damage, rubber layer rupture and Problem of Failure, seriously affect the riding quality of vehicle, influence the operation of vehicle
Safety.
In the operation of actual route, vehicle passes through different sweep routes, different Ultrahigh Bypass, vehicles while passing tunnel
When on road, open-wire line by beam wind, in order to ensure the safety in operation and passenger's riding comfort of vehicle, to lateral backstop and steering
Lateral distance has different requirements between framework frame.In addition, as railcar enters the station or when quickly through platform, aerodynamic force
It is obvious to the effect of vehicle, it is expected that the lateral displacement offset of car body is smaller, cross-car freedom of motion it is expected under normal operation,
The not effect by lateral backstop.
Based on the above situation, how to realize not under the premise of influencing dynamics of vehicle performance, improve Vehicular system to difference
The adaptability of route operating condition and weather environment variation, meets the operation of Vehicular system safety and comfort to lateral backstop free clearance
Demand, be that those skilled in the art need the critical issue that solves.
Summary of the invention
It is lateral applied to the active control on rail traffic vehicles that technical problem to be solved by the invention is to provide a kind of
Backstop, by active control technology, which can provide suitable horizontal according to the varying environment of the operation of Vehicular system
To backstop gap.
To solve the above problems, the technical scheme is that, the transverse stop device of rail traffic active control, base
Positional relationship between bogie car body and bogie, the device include vehicle sensors detection system and lateral backstop dress
It sets, the transverse stop device；It is arranged between car body and bogie frame；It is horizontal that control is provided on the transverse stop device
The actuator stretched to stop device；The vehicle sensors detection system, including for measuring adding for instantaneous transverse acceleration
Fast sensor, the displacement sensor for measuring car body and bogie frame lateral displacement instantaneous value and control actuator work
Feedback controller.
Further, it is transmitted between the vehicle sensors detection system and sensor by optical fiber.
Further, the acceleration sensor is mounted on car body floor bottom surface, the left and right right above bogie pivot center
Each one meter of position, for measuring the instantaneous transverse acceleration of car body.
Further, the acceleration sensor be mounted on bogie a left side and two right frame ends, for surveying
Obtain the instantaneous transverse acceleration of bogie.
Further, institute's displacement sensors are laser displacement sensor or stay wire displacement sensor.
Using above-mentioned apparatus, the lateral backstop method of road traffic active control is realized, steps are as follows:
Step (a): reduced value is preset in feedback controller；
Step (b): measuring instantaneous transverse acceleration using acceleration sensor, at the same using displacement sensor measure car body and
Bogie frame lateral displacement instantaneous value；
Step (c): feedback controller is by the data measured in step (b) and handles, at the same in feedback controller
Reduced value is preset to compare；
Step (d): feedback controller judges whether to need to operate actuator 4 according to comparing result, make car body and
Reach new suitable spacing between bogie frame.
Further, reduced value is preset in the step (a) as maximum cross-car stationarity value 2.5.
Further, reduced value is preset in the step (a) as maximum values of lateral 0.5g.
Further, the data handled in feedback controller in the step (c) are values of lateral Am, with feedback
Pre-set maximum values of lateral 0.5g is compared in controller.
Further, handling data in the step (c) in feedback controller is lateral stability index Wm, is controlled with feedback
Pre-set maximum cross-car stationarity value 2.5 compares in device processed.
Beneficial effects of the present invention: solving the problems, such as that lateral backstop is poor to environmental suitabilities such as route and weather, can be with
Under the premise of not influencing normal vehicle dynamic performance, active force is applied by actuator, is buffered between car body and bogie
Side knock and limit excessive lateral displacement, and the actuator can quickly be made according to the difference of running velocity it is anti-
It answers, meets the needs of Vehicular system control lateral displacement, realize lateral backstop and bogie frame spacing is adjustable, action time
Controllable target.
Detailed description of the invention
Fig. 1 is the block schematic illustration of implementation active control transverse stop device of the invention；
Fig. 2 is lateral backstop method frame schematic diagram proposed by the present invention；
Fig. 3 is the typical structure scheme of installation of active control transverse stop device proposed by the present invention.
Wherein, 1. car body, 2. bogie frames, 3. transverse stop devices, 4. actuator, 5. elastic rubbers.
Specific embodiment
The invention will be further elaborated with specific embodiment with reference to the accompanying drawing.
As shown in figure 3, a kind of transverse stop device of rail traffic active control, including vehicle sensors detection system
With transverse stop device 3, the transverse stop device 3；It is arranged between car body 1 and bogie frame 2；The transverse direction backstop dress
It sets and is provided with the flexible actuator 4 of control transverse stop device 3 on 3；The vehicle sensors detection system, including for measuring
Acceleration sensor, the displacement sensing for measuring 2 lateral displacement instantaneous value of car body 1 and bogie frame of instantaneous transverse acceleration
The feedback controller that device and control actuator 4 work.
Actuator 4 applies displacement load by feedback controller, so that between the freedom between car body 1 and bogie frame 2
Gap increases or reduces, and the dampening assembly elastic rubber 5 of 3 end of transverse stop device, elastic rubber 5 touches car body and framework
With certain damping effect when hitting.
When vehicle operation will receive orbital curve radius superelevation equal excitation, weather (beam wind etc.) and line environment in orbit
External world's excitation such as (tunnel, overpass etc.) causes bogie and cross-car to be displaced, at this point, lateral backstop 3 and framework 2 is mutual
Effect can buffer side knock and the excessive lateral displacement of limitation between car body 1 and bogie frame 2, in order to according to not
Suitable backstop gap is quickly provided with route operating condition and environmental change.
There are two types of application schemes for above-mentioned apparatus:
Scheme one: on car body floor bottom surface, apart from each one meter of position in left and right right above bogie pivot center, acceleration is installed
Sensor, according to the instantaneous transverse acceleration of the available car body of acceleration transducer；Right above cross-car backstop mounting base,
Laser displacement sensor or stay wire displacement sensor are installed, it is horizontal according to the available car body of displacement sensor and bogie frame
To apart from instantaneous value.It is mounted on the acceleration value analytical calculation that the feedback controller below car body can will measure, obtains nearest 2s
The transient state lateral stability value of interior car body, judge whether be more than critical value 2.5,
And then judge whether the lateral backstop of active control needs additionally to stretch to control backstop gap, the speed of vehicle operation
The information such as degree are transferred in controller also by optical fiber, are required according to lateral stability index, are quickly made a response.
Scheme two: acceleration transducer is installed, according to acceleration in a left side and two right frame ends in bogie
The instantaneous transverse acceleration of the available bogie of sensor is equally also required to right above cross-car backstop mounting base, installation
Laser displacement sensor or stay wire displacement sensor, according to the available car body of displacement sensor and bogie frame transverse direction position
Move instantaneous value.The lateral-acceleration value of car body can will be measured by being mounted on the feedback controller below car body, judge laterally to add at two
Whether speed is more than critical value 0.5g,
And then judge whether the lateral backstop of active control needs additionally to stretch to control backstop gap, the speed of vehicle operation
The information such as degree are transferred in controller also by optical fiber, are required according to lateral stability index, are quickly made a response.
For needing to be additionally provided the transverse stop device of active force, energy required for actuator is by being mounted under car body
Side outside energy source provide, the positive input and negative input of the provided energy of actuator can control lateral backstop advance or after
It moves back.The actuator can be electromagnetic actuator, hydraulic actuator or pneumatic actuator, and specific choice can be according to vehicle reality
Running environment and vehicle design parameter are reasonably selected.The actuator Vehicular system do not need provide added force when be
, the purpose that satisfaction do not have an impact dynamics of vehicle performance similar with existing lateral backstop action of rigidity.
When laterally braking active control is not had an effect, free clearance setting is smaller, can satisfy beam wind, quickly wears
More platform etc. needs car body and the lesser operating condition of bogie lateral clearance, and transverse stop device is identical as conventional apparatus at this time；Vehicle
When operating in regular link, it is expected that lateral backstop, which does not move cross-car, generates constraint, at this point, lateral backstop active control
System starts automatically adjust lateral clearance according to the cross-car vibration measured.
The transverse direction backstop active control system belongs to active closed-loop control, and basic thought is by system mode appropriate
Or output feedback, certain control action is generated actively to change lateral backstop parameter, so that system be made to meet scheduled dynamic
Characteristic requirements.Particularly vehicle lateral acceleration situation is obtained in time using the acceleration transducer being installed on vehicle,
And collected state variable feedback to vehicle control device, to implement a kind of control strategy of optimum control.
As shown in Figs. 1-2, the method that the lateral backstop of active control is realized using above-mentioned apparatus,
Step (a): presetting reduced value in feedback controller, and it is most that reduced value is preset in the step (a)
Big car body lateral stability value 2.5 is maximum values of lateral 0.5g.
Step (b): instantaneous transverse acceleration is measured using acceleration sensor, while measuring car body 1 using displacement sensor
With 2 lateral displacement instantaneous value of bogie frame；
Step (c): feedback controller is by the data measured in step (b) and handles, at the same in feedback controller
Reduced value is preset to compare；
It is lateral stability index Wm when handling data in the step (c) in feedback controller, in feedback controller
Pre-set maximum cross-car stationarity value 2.5 compares.At this point, the active control system of transverse stop device 3 is not
It works, lateral backstop gap maintains the good small―gap suture state of default setting.When vehicle operates under regular link environment,
The active control system of transverse stop device 3 is started to work, and the acceleration transducer for being mounted on 1 floor bottom surface of car body obtains car body
The real time speed information v that vehicle is run is transferred to feedback controller also by light pricker by transverse acceleration Am, train control system.
Maximum cross-car stationarity value 2.5 is provided in feedback controller in advance, feedback controller meeting basis measures
The lateral stability index Wm that 1 transverse acceleration Am of car body is calculated judges whether to need to actuation compared with limit value 2.5
Device 4 is operated.As Wm≤2.5, feedback controller is not acted on transverse stop device 3, and actuator 4 is equivalent to rigidity
Straight-bar is identical as the effect of traditional transverse stop device 3；As Wm > 2.5, the practical lateral stability of car body 1 has been more than limit
Value needs actuator 4 to be additionally provided effect displacement S, keeps transverse stop device 3 flexible, accurately controlled by laser displacement sensor
Distance of stretch out and draw back processed makes to reach between car body 1 and bogie frame 2 new suitable spacing.
Actuator 4, which applies additional effect displacement S, may be expressed as:
Wherein, Ss is a unit effect displacement, and whether system can meet Wm≤2.5 according to application aftercarriage riding index
Condition, continue loading unit effect displacement if being unsatisfactory for, so repeat, until reaching the targets of Wm≤2.5.
When the data handled in feedback controller in the step (c) are 1 transverse acceleration Am of car body, with feedback controller
In pre-set maximum values of lateral 0.5g compare.At this point, the active control system of transverse stop device 3 is not
It works, lateral backstop gap maintains the good small―gap suture state of default setting.When vehicle operates under regular link environment,
The active control system of transverse stop device 3 is started to work, and the acceleration transducer for being mounted on 1 floor bottom surface of car body obtains car body
1 transverse acceleration Am.
Maximum values of lateral 0.5g is provided in feedback controller in advance, feedback controller can be according to the vehicle measured
1 transverse acceleration Am institute of body judges whether to need to operate actuator 4 compared with limit value 0.5g.As Am≤0.5g, instead
It presents controller not act on transverse stop device 3, actuator 4 is equivalent to rigid straight-bar, the effect with traditional transverse stop device 3
It is identical；As Am > 0.5g, the practical lateral vibration acceleration of car body 1 has been more than limit value, and actuator 4 is needed to be additionally provided effect
It is displaced S, keeps transverse stop device 3 flexible, distance of stretch out and draw back is accurately controlled by laser displacement sensor, makes car body 1 and bogie
Reach new suitable spacing between framework 2.
Actuator 4, which applies additional effect displacement S, may be expressed as:
Wherein, Ss is the effect displacement of unit, system can according to apply aftercarriage vibration acceleration whether meet Am≤
The condition of 0.5g continues loading unit effect displacement if being unsatisfactory for, so repeats, until reaching the target of Am≤0.5g.
Feedback controller is to the lateral stability W that will be calculatedmWith limit value 2.5 comparison (or will measure Am and laterally plus
Speed limit 0.5g comparison), carry out control judgement.According to control strategy, if lateral stability value Wm≤ 2.5 (or laterally accelerate
Spend Am≤0.5g), controller does not issue control information, and actuator 4 is equivalent to rigid straight-bar, with the passive transverse stop device of tradition
3 effects are identical, then the process terminates, and waits the subsequent time signal of acceleration transducer；If Wm> 2.5 (or Am > 0.5g), say
Bright 1 lateral stability of car body is exceeded (or transverse acceleration is exceeded), needs to be precisely controlled actuator 4 by laser displacement sensor
It is flexible reach suitable backstop gap, to buffer side knock and the excessive cross of limitation between car body 1 and bogie frame 2
To displacement.
In above two comparison scheme, the speed of service v of vehicle is also transferred to feedback control by vehicle sensors test macro
In device processed, for controlling the action time t of actuator 4.
Step (d): feedback controller judges whether to need to operate actuator 4 according to comparing result, makes 1 He of car body
Reach new suitable spacing between bogie frame 2.When Vehicular system is needed through the active control of transverse stop device 3 come real
When now inhibiting to 1 transverse movement of car body, energy is provided by external energy source, 4 applying unit of actuator is displaced Ss, promote transverse direction
3 Moving Unit distance of stop device；Then the judgement for carrying out step (c) again, if Wm> 2.5 (or Am > 0.5g) actuator 4 are applied
Add element displacement load SsIf Wm≤ 2.5 (or Am≤0.5g), then 4 load of actuator remains unchanged, in this way, actively controlling
The transverse stop device 3 of system can guarantee Vehicular system lateral stability value Wm≤ 2.5 (or transverse acceleration Am≤0.5g), and
And control time feedbacking is quick, is not in the case where control not in time, to realize the mesh of 3 active control of transverse stop device
's.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
Claims (1)
1. a kind of transverse stop device of rail traffic active control, including vehicle sensors detection system and lateral backstop dress
It sets (3), the transverse stop device (3)；It is arranged between car body (1) and bogie frame (2)；The transverse stop device
(3) the flexible actuator (4) of control transverse stop device (3) is provided on；
The vehicle sensors detection system, including for measuring instantaneous transverse acceleration acceleration sensor, for measuring vehicle
The feedback control of the displacement sensor and control actuator (4) work of body (1) and bogie frame (2) lateral displacement instantaneous value
Device；
The dampening assembly elastic rubber (5) of transverse stop device (3) end, elastic rubber (5) collide car body and framework
When have damping effect；
It is transmitted between the vehicle sensors detection system and sensor by optical fiber；
The acceleration sensor is mounted on car body floor bottom surface, apart from each one meter of position in left and right right above bogie pivot center, is used
In measuring the instantaneous transverse acceleration of car body；
The acceleration sensor be mounted on bogie a left side and two right frame ends, it is instantaneously horizontal for measuring bogie
To acceleration；
Institute's displacement sensors are laser displacement sensor or stay wire displacement sensor；
A kind of lateral backstop method of rail traffic active control, it is characterised in that:
Steps are as follows:
Step (a): presetting reduced value in feedback controller, presets reduced value as maximum cross-car stationarity value
2.5；Reduced value is preset as maximum values of lateral 0.5g；
Step (b): measuring instantaneous transverse acceleration using acceleration sensor, at the same using displacement sensor measure car body (1) and
Bogie frame (2) lateral displacement instantaneous value；
Step (c): feedback controller is by the data measured in step (b) and handles, at the same in feedback controller in advance
Setting reduced value compares, and the data handled in feedback controller are car body (1) transverse acceleration Am, in feedback controller
Pre-set maximum values of lateral 0.5g is compared；It is lateral stability index that data are handled in feedback controller
Pre-set maximum cross-car stationarity value 2.5 compares in Wm, with feedback controller；As Wm≤2.5, feedback control
Device processed does not act on transverse stop device (3), and actuator (4) is equivalent to rigid straight-bar, with traditional transverse stop device (3)
Effect it is identical；As Wm > 2.5, the practical lateral stability of car body (1) has been more than limit value, and actuator (4) is needed additionally to mention
It is displaced S for effect, keeps transverse stop device (3) flexible, distance of stretch out and draw back is accurately controlled by laser displacement sensor, makes car body
(1) reach new suitable spacing between bogie frame (2)；
Step (d): feedback controller judges whether to need to operate actuator (4) according to comparing result, make car body (1) and
Reach new suitable spacing between bogie frame (2).
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| CN201610595006.7A CN106184267B (en) | 2016-07-26 | 2016-07-26 | A kind of transverse stop device and method of rail traffic active control |
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| CN201610595006.7A CN106184267B (en) | 2016-07-26 | 2016-07-26 | A kind of transverse stop device and method of rail traffic active control |
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| CN202115536U (en) * | 2011-05-11 | 2012-01-18 | 铁道部运输局 | Full-active control vibration damping device of railway vehicle |
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